Improvement in stoves



designed to receive and entrap a portionA ofthe products of combustion as they rise from the tire-chamber, .and

JOHN H. Kersen, orV NEW Yon-KQ N.` Y.

Y l Letters Patent No. 82,327, dated September 22, 1868.

IMPROVEMENT IN STOVES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN H. KEYSER, of the city of New York, in the county and State of New York, have invented a new and useful Improvement in Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a partof this specitication, in which- 4 Figure 1 is a side external elevation of portions of my improved stove.

Figure 2 is a top view of the same. l A

Figure 3 is an enlarged diametrical section of the illuminating-section, showing my improvement.

Similar letters o'f reference indicate corresponding parts in the several figures.

This invention relates to an improvement on that class of stoves which have a direct upward draught from the fire-chamber` to. an escape-Hue, or to a drum placed on the top of the wall surrounding thc fire-chamber.

The object of my invention and improvement on this class of stoves is to provide for entrapping a. portion of the heated products of combustion on their way to the escapeue by forming an annular chamber within the combustion-chamber, andaround a central opening leading to the drum or stove-cap, which chamber will retain said ,heated products, and greatly augment the heating capacity of the stove, without materially interfering with the draught, as will be hereinafter expiained. v

To enable others skilledin the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, I have represented two sections only of a direct-draught stove, the lower .I section B being made of cast iron, and adapted to serve as the fire-pot for enclosing the {ire-chamber, and the upper section A being also made of cast iron, and adapted to serve as an expansion-chamber, and to receive upon it a drum, having a feed-door and es cape-pipe. I

The` improvement which I 'have made'is upon the section A, and is shown clearly in figs. 2 and 3. llhis` V sectionl may be castin-onepieceLor it may be made of two separate pieces.A It consists of an upwardly-daring portion, a, united to the'base of a portion, 6, which, Yin form, is the frpstum of a cone. \The-anuular collar c on top of the conical portion b is designed for receiving and holding in' which forms the top section of the stove, and to which the lfeed-door and escape-pipe 'areapplied Surrounding the inclined orgconical portion b, and arranged at regular -intervals apart, is a number of'- illuminating-windows, d, for the purpose of exposing to view the light of the fire within the fire-chamber;

The mica lights, forming these windows, are applied to window-frames which project from the surface of. b,

and present a very attractiue and beautiful appearance.

These windows are not constructed upon all of` myimprovedstoves, and therefore-,I

to their use. v l

Within the section do not confine myself A, and united to the portion b, at the upper terminus' thereof, is 'dowuwardly-convergin'g annular wall, C, which extends down into the space surrounded by the upwardly-daring portion a, as shown in iig; 3. This tapering wall formsauvannular chamber, G, between it and the inclined plate b, which chamber is retain them long enough to obtains. large amount of heat, which would otherwise be carried quickly .o through the escape-due.

' It is not intended that the taperingwall C shall materially check the draught of the stove, but only to keep back portions of the rising products of combustion, so that .a larges-amount of heat will 4be radiated from the section A. l

If desirable, rthe wall C may bepperforated at or near 'its upper terminus, which will allow a slight .upwardy ',.draught from chamber Gr, and prevent any possibility of stagnation of air erdgas in this chamber. If'thewall "C does not' extend very far into the tire-chamber, it will not be'necessary toprovide escape-.apertures through vsaid.walk-'iis there will be a` circulation oflthe products of combustion in the chamber G, caused by the heated m products impinging against the comparatively cool walls a b, and descending again into the tire-chamber, while v :3 he more highly-heated productsrise from saidv tire-'chamber and take their place.

placca drum,

-Seid chamber -Gr will also create an eddy within the section A, which will also serve to retain the heated products of combustion within the body of the'stove suiciently long to obtain considerable heat.

AAnother advantage attending the tapering wall C is, that in feeding the fire with fuel through a door above the section A, the coal will strike upon said wall' and be distributed evenly upon ythe grate. Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1'. The combination of sections A and B, the latter constituting the re-chamber, and the former an 'illumi-A noting and heat-retainngtop section for B, substantially as described. '2. The construction of section A' with an internal downwardly-contracted wall, C, with inclined illuminatingwindows d, and with a downwardlyfcontracted base portion, a, said parts being adaptedx to 't upon a nre-pot section, B, substantially as described.

Witnesses WILLIAM TunfroN, WILLIAM F. HUEsroN.

JOHN H; KEYSER, 

